New Low-Distortion Q-f Droop Plus Correlation Anti-Islanding Detection Method for Power Converters in Distributed Generation Systems. - Jesús Muñoz-Cruzado-Alba; Javier Villegas-Nunez; Jose Alberto Vite-Frias; Juan Manuel Carrasco Solís; Eduardo Galvan Diez (IEEE Trans. Ind. Electron., 2015)